Home / 122,280.06-183,701.57-86,339.55

Finding the Fourth Proportional to 122,280.06, 183,701.57 and 86,339.55

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Solution

The fourth proportional to 122,280.06, 183,701.57 and 86,339.55 is: 129,708.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,280.06 : 183,701.57 = 86,339.55 : x
  2. Step 2: Convert to fraction form
    122,280.06/183,701.57 = 86,339.55/x
  3. Step 3: Cross multiply
    122,280.06x = 183,701.57 × 86,339.55
  4. Step 4: Simplify right side
    122,280.06x = 15,860,710,456.40
  5. Step 5: Solve for x
    x = 15,860,710,456.40/122,280.06
  6. Step 6: Final answer
    x = 129,708.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.